Demountable vehicle-rim.



and i' of the rim #1i and thns expand the lat-` -of the rim it areplaced within the tire l() with the rings il on each side of the tire,

` and. in proper engagement therewith. The

nat i() is then screwed onto the valve .stein l?? of the tire Aand isscrewed lirlnlir against the hevel faees lil. rllhis operation expandsthe hase memher outwariflly into firm en'- gagenient with the hoop-likerings 9 which serve to limit the expanding inovenient thereof. When thennt() is screwed up tight the sectional ring` will he firmly heldagainst the hoop-like rneinhers and a solid structure will he presented.To remove the tire from the riin involves simply taking off the nnt '.20thereby allowing' the sectional rim t to he hrolien down and removed.

In Fig. T I have shown Aa modification of the intention wherein theopening for the valve stein situated at one Side of the ineetingi` endsoi" the sections (i and T. In this emhmlinient of the invention thefseetion t3 is ln'ovided with an opening 21 through whieh the ralvesteni1S extends, seid opening being situated at one side of the joint Q2between the sections G and 7. The section 7 has a strap :'23 securedthereto atl 2%, the end of which adapted to he engaged hy the nut 2Owhen the. latter is screwed np." lilith this construction the tighteninget the nnt 2i) will expand the rihk" A demonntahle riin comprising ahase Inemloer having a shape to present a central tire receivingportioinand a lip or flange at each edge thereof, said hase nieinherheing made in a plurality of separable sec-l tions, the end of onesection havingr an ex tension or lip and the adjacent end of the nextsection having a flange adapted to nnderlie said extenaion, saidextension and fiange provided with projections and slots respectivelyadapted to intel-look the seetions, two tire-holding;n rings eneirclin;rsaid base nieinher and engaging,r the lips thereof, and means applied tosaid riin and coperatinpr with the adjacent ends ol' said other sectionsof the hase nieniher thereinr to ex'- pand said hase lnenlheroutwardlivv into firni engagement with the tire holding' rings.

In testimony whereof, 1 have signed my naine to this specification.

lili

